The Cognitive Radio and the Cognitive Radio Networks have recently become one of the
most intensively studied paradigms in wireless communications. The main distinctive …

Sensing/monitoring of spectrum-availability has been identified as a key requirement for
dynamic spectrum allocation in cognitive radio networks (CRNs). An important issue …

The cognitive radio (CR) paradigm calls for open spectrum access according to a
predetermined etiquette. Under this paradigm, CR nodes access the spectrum …

We consider a cognitive radio (CR) network that makes opportunistic use of a set of
channels licensed to some primary network. During its operation, the CR network is required …

Spectrum sensing is a prominent functionality to enable dynamic spectrum access (DSA) in
cognitive radio (CR) networks. It provides protection to primary users (PUs) from interference …

This paper proposes a novel medium access control (MAC) scheme for multichannel
cognitive radio (CR) ad hoc networks, which achieves high throughput of CR system while …

A cognitive radio (CR) is the most promising candidate for the successful deployment of
dynamic spectrum access (DSA). To embed DSA in a wireless sensor network, a CR is …

With the rapid development of wireless communication, the scarcity of spectrum becomes
more and more prominent. Cognitive radio is proposed to overcome the problem of low …

Cognitive radios (CRs) are emerging as a promising technology to enhance spectrum
utilization through opportunistic on-demand access. Many MAC protocols for cognitive radio …

In a cognitive radio (CR) network, CR users intend to operate over the same spectrum band
licensed to legacy networks. A tradeoff exists between protecting the communications in …